Search Results - "Jose Carlos Lopes"

Intensification of heterogeneous TiO2 photocatalysis using an innovative micro–meso-structured-reactor for Cr(VI) reduction under simulated solar light by Marinho, Belisa A., Djellabi, Ridha, Cristóvão, Raquel O., Loureiro, José M., Boaventura, Rui A.R., Dias, Madalena M., Lopes, José Carlos B., Vilar, Vítor J.P.

“…•An innovative micro–meso-structured-reactor for Cr(VI) photocatalytic reduction.•Cellulose acetate sheet coated with a TiO2 thin film was used in the…”
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Flow imbalance and Reynolds number impact on mixing in Confined Impinging Jets by Fonte, Cláudio P., Sultan, M. Ashar, Santos, Ricardo J., Dias, Madalena M., Lopes, José Carlos B.

“…•The flow in a CIJs mixer is studied with the PLIF flow visualization technique.•Three flow regimes are observed in the range 50<Re<600.•The jets’ flow…”
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Study of different designs of methanol steam reformers: Experiment and modeling by RIBEIRINHA, P, BOAVENTURA, M, LOPES, José Carlos B, SOUSA, José M, MENDES, A

“…Three reformers with different designs (multi-channel, radial and tubular) were developed for thermal integration with a high temperature polymeric electrolyte…”
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On the 2D nature of flow dynamics in opposed jets mixers by Gonçalves, Nelson D., Salvador, Hélder M., Fonte, Cláudio P., Dias, Madalena M., Lopes, José Carlos B., Santos, Ricardo J.

“…Confined impinging jets (CIJs) are reactors used in processes that require fast mixing. In such equipment two fluids are injected from opposite sides of a…”
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Lagrangian mixing simulation and quantification of scales by Matos, Joana, Brito, Margarida S.C.A., Dias, Madalena M., Lopes, José Carlos B., Santos, Ricardo J.

“…[Display omitted] •Lagrangian Mixing Simulation (LMS) method to characterise mixing is developed.•LMS is applied over a 2D CFD simulation in a CIJ reactor.•LMS…”
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Experimental study of flow regime and mixing in T-jets mixers by Ashar Sultan, M., Fonte, Cláudio P., Dias, Madalena M., Lopes, José Carlos B., Santos, Ricardo J.

“…The flow field in T-jets mixers is studied experimentally for different geometrical parameters using Planar Laser Induced Fluorescence (PLIF). A particular…”
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Estimation of kLa Values in Bench‐Scale Stirred Tank Reactors with Self‐Inducing Impeller by Multiphase CFD Simulations by Santos-Moreau, Vania, Lopes, José Carlos B., Fonte, Cláudio P.

“…A multiphase computational fluid dynamics (CFD) simulation methodology is developed and proposed for the estimation of the spatial distribution of kLa values…”
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Computational Fluid Dynamics Model of Two‐Phase Flow in NETmix Reactors by Fernandes, Isabel Sousa, Brito, Margarida Sarmento e Cunha Abrunhosa, Manrique, Yaidelin Alves, Dias, Madalena Maria, Lopes, José Carlos Brito, Santos, Ricardo Jorge

“…A computational fluid dynamics (CFD) modeling approach was developed to study the mixing of two immiscible liquids in NETmix reactors. A two‐dimensional…”
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Proper Orthogonal Decomposition and Statistical Analysis of 2D Confined Impinging Jets Chaotic Flow by Torres, Pedro, Goncalves, Nelson D., Fonte, Claudio P., Dias, Madalena M., Lopes, José Carlos B., Liné, Alain, Santos, Ricardo J.

“…Proper orthogonal decomposition (POD) is shown to be a statistical operation that identifies the main characteristics of chaotic flows and separates them into…”
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Effect of catalyst coated surface, illumination mechanism and light source in heterogeneous TiO2 photocatalysis using a mili-photoreactor for n-decane oxidation at gas phase by da Costa Filho, Batuira M., Araujo, Ana L.P., Padrão, Stefan P., Boaventura, Rui A.R., Dias, Madalena M., Lopes, José Carlos B., Vilar, Vítor J.P.

“…[Display omitted] •Microscale illumination (UVA-LEDs) improved the illumination efficiency.•High porous TiO2 films enabled gas molecules to diffuse into deep…”
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An elastic analog model for controlling the impingement point position in confined impinging jets by Fonte, Cláudio P., Sultan, M. Ashar, Santos, Ricardo J., Dias, Madalena M., Lopes, José Carlos B.

“…Confined impinging jets (CIJs) are highly efficient mixers. The scales of mixing in CIJs are controlled by the opposed jets interaction. A mechanistic model is…”
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Micromixing assessment of confined impinging jet mixers used in RIM by Nunes, Maria I., Santos, Ricardo J., Dias, Madalena M., Lopes, José Carlos B.

“…The simultaneous azo couplings of 1- and 2-naphthols with diazotized sulfanilic acid have been widely used to study the influence of mixing on the product…”
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Characterization of mixing in T-jets mixers by Krupa, Kateryna, Sultan, M.Ashar, Fonte, Cláudio P, Nunes, Maria I, Dias, Madalena M, Lopes, José Carlos B, Santos, Ricardo J

“…The product distribution of a fast chemical reaction system was used for the characterization of micromixing in T-jets mixers; several geometries were assessed…”
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NETmix®, a new type of static mixer: Experimental characterization and model validation by Laranjeira, Paulo E, Martins, António A, Nunes, Maria Isabel, Lopes, José Carlos B, Dias, Madalena M

“…In a previous article (Laranjeira et al.), a network model was developed to describe and predict the behavior and performance of NETmix®, a new type of static…”
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Numerical study of active mixing over a dynamic flow field in a T-jets mixer—Induction of resonance by Erkoç, Ertugrul, Fonte, Cláudio P., Dias, Madalena M., Lopes, José Carlos B., Santos, Ricardo J.

“…•Mixing dynamics in opposed jets mixers is related with flow dynamics.•Effect of active mixing parameters on flow dynamics is assessed.•Active mixing is…”
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NETmix®, a new type of static mixer: Modeling, simulation, macromixing, and micromixing characterization by Laranjeira, Paulo E, Martins, António A, Lopes, José Carlos B, Dias, Madalena M

“…NETmix® is a new technology for static mixing based on a network of chambers connected by channels. The NETmix® model is the basis of a flow simulator coupled…”
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Dynamic behavior of the flow field in a RIM machine mixing chamber by Santos, Ricardo J, Erkoç, Ertugrul, Dias, Madalena M, Lopes, José Carlos B

“…Dynamic behavior of the flow field in a Reaction Injection Molding, RIM, machine mixing chamber, having dimensions typically used in industrial machines, is…”
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Mixing in the NETmix Reactor by Matos, Joana, Santos, Ricardo J., Dias, Madalena M., Lopes, José Carlos B.

“…NETmix is a static mixing reactor composed of a network of mixing chambers interconnected by channels. The repetitive mixing pattern inside the reactor enables…”
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Hydrodynamics of the mixing chamber in RIM: PIV flow-field characterization by Santos, Ricardo J, Erkoç, Ertugrul, Dias, Madalena M, Teixeira, André M, Lopes, José Carlos B

“…The flow-field in a Reaction Injection Moulding, RIM, machine mixing chamber was characterized using the Particle Image Velocimetry (PIV) technique. This study…”
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Prediction of the Induced Gas Flow Rate from a Self-Inducing Impeller with CFD by Fonte, Cláudio P., Pinho, Bruno S., Santos-Moreau, Vania, Lopes, José Carlos B.

“…The complex task of describing computationally two‐phase turbulent flows in aerated stirred‐tank reactors was overcome by proposing that the gas flow rate in…”
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